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colombo-skylines
A digital twin of the city of Colombo, Sri Lanka, implemented in Cities: Skylines, based on real data. Nearly 1:1 in terms of geography and population.
Methodology here: https://github.com/team-watchdog/colombo-skylines/wiki/Intro...
We've also tweaked many of the assumptions (traffic flow, citizen lifecycles etc) https://github.com/team-watchdog/colombo-skylines/wiki/mod-c... to get "somewhere in the vicinity" of how people actually behave - nursery school at 6 years old, high school after, then a job, maybe college, then employment and retirement at 65. Not quite accurate, of course.
In some of the work that I was involved in years back we were using CDR (call detail records) to estimate human mobility. See: https://medium.com/@yudhanjaya/how-people-come-to-nallur-7d3...
We're certainly not that accurate, as the broader you go with simulation, the less deep you can get to.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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You can download a height map file from https://terrain.party/ or https://heightmap.skydark.pl/ and start a new game with the unlimited money cheat. Then it's just a matter of placing roads, utilities, public services and zoning the rest (that's the fun part).
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This is super impressive! I'd agree the open-source tooling isn't there yet, but it's coming in a few places. I started a 3D street visualizer but it's only at the scope of a few blocks at a time, not as large as a city area although we'd like to get there someday: https://github.com/3dstreet/3dstreet/
There's also https://github.com/a-b-street/abstreet for larger area simulation but with less visual fidelity
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abstreet
Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit
This is super impressive! I'd agree the open-source tooling isn't there yet, but it's coming in a few places. I started a 3D street visualizer but it's only at the scope of a few blocks at a time, not as large as a city area although we'd like to get there someday: https://github.com/3dstreet/3dstreet/
There's also https://github.com/a-b-street/abstreet for larger area simulation but with less visual fidelity